ASoC: add symmetric_ prefix for dai->rate/channels/sample_bits

ASoC: add symmetric_ prefix for dai->rate/channels/sample_bits

snd_soc_dai has rate/channels/sample_bits parameter, but it is only valid
if symmetry is being enforced by symmetric_xxx flag on driver.

It is very difficult to know about it from current naming, and easy to
misunderstand it. add symmetric_ prefix for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://patch.msgid.link/87zfmd8bnf.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>